2/5     I'm looking for a GPS device that can do the following:  Store
        4 points and calculate the surface area inside those four points.
        Actually 3 points would be nice too.  Does such a thing exist?  I'm
        trying to measure the size of a plot of land.  Thanks.
        [garbage deleted.  If it's not necessary to say, it's necessary
         not to say]
        \_ If you can't calculate the area yourself given the 4 points....
           you should turn in your degree.
           \_ Do you use a calculator?  Don't be a dumbass.  I need
              accurate answers; that's why there's technology.  Maybe you think
              we should all go back to an era before computers.
              \_ This is a problem better solved on a computer, than on the
                 GPS unit.  So few people would have a need for it.  And how
                 big an area are we talking about?  Even with SA off, I
                 wouldn't use non differential GPS for an area smaller than
                 an acre, unless you want fake precision.
                 \_ The land I'm trying to measure range from 10-300 acres.
                    I want to drive to the four corners of the land and store
                    the coordinates and then have an answer right away.
                    And do this on different plots of land.